Filters & accessories

Breathe Cleaner Air at Home with Blueair Air Purifiers

Finding the right air purifier can transform your indoor air quality and help reduce allergy symptoms. Our curated collection features HEPASilent™ technology in every model from portable room units to comprehensive air care solutions for your entire home.

Best Air Purifiers for Allergies & Asthma Relief

If you're searching for the best air purifier to combat allergies, you've come to the right place. Our top-rated models feature HEPASilent™ dual filtration technology that captures 99.97% of airborne allergens down to 0.1 microns including pollen, dust mites, pet dander, and mold spores.

Why Blueair for Allergies?

HEPASilent™ Technology: Our proprietary combination of mechanical and electrostatic filtration removes 99.97% of airborne particles down to 0.1 microns. This exceeds traditional HEPA standards (rated for 0.3 microns), capturing even finer allergens and pollutants.

45% More Clean Air: Blueair delivers 45% more volume of clean air compared to typical HEPA filtration, meaning faster relief from allergy symptoms.

Certified Performance: Select Blueair models have earned the Asthma and Allergy Friendly™ Certification, verifying their effectiveness for sensitive individuals.

Top Features Our Customers Love:

• HEPASilent™ dual filtration capturing microscopic allergens
• Whisper-quiet operation (up to 67% quieter than traditional HEPA units)
• Smart sensors that automatically adjust to air quality changes
• Energy-efficient design using less power than a lightbulb
• RealTrack™ technology for accurate filter life monitoring
• AHAM Verified for Clean Air Delivery Rate (CADR)

Where to Buy: You're already in the right place. Every air purifier in our collection ships free, includes our 30-day home trial, and comes with a manufacturer warranty that can be extended to 3 years when you register your product.

Room Air Purifiers by Size: Perfect for Any Space

Not sure which room size you need? Our air purifier collection is organized by coverage area to make selection simple.

Small Rooms (Up to 200 sq ft)

Perfect for bedrooms, home offices, and nurseries. These compact units deliver powerful HEPASilent™ filtration without taking up valuable floor space.

Featured Models:

• Blue Pure Mini Max
• Blue Pure 511i Max
• Blue Pure 511

Best For: Nurseries, small bedrooms, dorm rooms, personal offices

Medium Rooms (250-500 sq ft)

Our most popular category for living rooms and master bedrooms. These models balance coverage, features, and value, with activated carbon filters for odor removal alongside HEPASilent™ filtration.

Featured Models:

• Blue Pure 311i+ Max
• Blue Pure 311i Max
• ComfortPure™ 3-in-1 T10i

Best For: Master bedrooms, living rooms, family rooms, home gyms

Large Rooms (500+ sq ft)

Designed for open-concept spaces and great rooms. High CADR ratings ensure rapid air circulation even in spacious areas.

Featured Models:

• Blue Pure 211i Max
• Blue Signature™
• Classic Pro CP7i
• ComfortPure™ 3-in-1 T20i
• 2-in-1 Pro Purify + Humidify

Best For: Open-concept living areas, large master suites, finished basements

Smart Sorting: Use our filters to narrow by price range, room size, or special features. Looking for the top-rated air purifier under $400? Set your price filter and see models automatically sorted by customer ratings.

2-in-1 Air Purifier & Humidifier Systems

Many customers ask about air purifiers with humidification. Blueair offers innovative 2-in-1 solutions that combine both functions.

Understanding Your Air Care Needs

Air Purifiers: Remove contaminants from existing air allergens, dust, pet dander, smoke, odors, and pollutants. Essential year-round for anyone with allergies, asthma, or air quality concerns.

Humidifiers: Add moisture to dry air. Helpful during winter months when heating systems dry out indoor air, causing dry skin, sinus issues, and static electricity.

2-in-1 Purify + Humidify Collection

Our 2-in-1 models feature:

• HEPASilent™ air purification
• InvisibleMist™ humidification technology
• 360° air distribution
• Mold-inhibiting UV pump (for humidifier component only)
• Smart skin mode co-created with dermatologists
• Up to 60 hours of mess-free moisture

Available Models:

• 2-in-1 Purify + Humidify 
• 2-in-1 Pro Purify + Humidify

Heat, Cool, & Purify: ComfortPure™ 3-in-1 Collection

Experience year-round comfort with ComfortPure™ 3-in-1 air purifiers that combine three essential functions: purifying with HEPASilent™ technology, warming with efficient heating, and cooling with powerful fan circulation.

ComfortPure™ 3-in-1 Features:

• TripleFlow Technology: Three unique air outlets optimized for purification, heating, and cooling modes
• HEPASilent™ Filtration: Continuous air purification in all modes
• Smart App Control: Monitor and adjust from anywhere
• Whisper-Quiet: Designed for bedroom use

Models Available:

• T10i (Small Rooms)
• T20i (Large Rooms)

Air Purifiers for Every Need

Air Purifiers for Pet Owners

Designed to capture pet dander and reduce odors with HEPASilent™ filtration plus activated carbon layers.

Best Features:

• Removes 99.97% of pet dander
• Activated carbon for odor control
• High CADR for faster air cleaning
• Washable pre-filters in multiple colors

Air Purifiers for Smoke & Odors

SmokeBlock Filters feature enhanced activated carbon to address smoke particles and associated odors from wildfires, cooking, or other sources.

Air Purifiers for Children's Rooms

Over 90% of parents worldwide consider their children's bedrooms the most important room for clean air. Blueair air purifiers help:

• Reduce respiratory triggers
• Support better sleep quality
• Remove dust, allergens, and airborne bacteria
• Operate whisper-quietly for undisturbed sleep

Shop by Technology & Features

HEPASilent™ Dual Filtration

Blueair's proprietary technology combines mechanical and electrostatic filtration to capture 99.97% of airborne particles down to 0.1 microns exceeding traditional HEPA standards.

Activated Carbon Filters

Remove odors, smoke, VOCs, and chemicals from paint, cleaning products, and everyday activities.

Smart Air Quality Sensors

Auto-adjusts fan speed based on detected air quality, ensuring optimal performance without manual intervention.

Whisper-Quiet Operation

Up to 67% quieter than traditional HEPA units. Many models operate at under 30 dB on lowest setting quieter than a whisper.

Energy Efficient

Uses less energy than a lightbulb. Run 24/7 for continuous protection without high electricity costs.

Scandinavian Design

Award-winning, minimalist designs that complement any home décor. Available in multiple colors with customizable fabric pre-filters.

Why Choose Blueair Air Purifiers

Swedish Engineering Excellence

"It's not magic, it's Swedish engineering." For nearly 30 years, Blueair has pioneered air purification innovation from Stockholm, Sweden.

Certified Performance

• AHAM Verifide: Independently tested Clean Air Delivery Rate (CADR)
• CARB Certified: Safe ozone emissions
• Energy Star: Energy-efficient operation
• Asthma & Allergy Friendly™: Select models certified
• Certified B Corporation: Committed to social and environmental standards

Customer Promise

• Free shipping on all orders over $35
• 30-day home trial
• Extended warranty available (up to 3 years when registered)
• HSA/FSA eligible for qualified customers
• Subscribe & Save 15% on filter replacements

Understanding Air Purifier Performance

What is CADR?

Clean Air Delivery Rate (CADR) measures the volume of filtered air an air purifier delivers. Higher CADR means faster air cleaning. All Blueair purifiers are AHAM Verifide for CADR ratings on tobacco smoke, pollen, and dust.

What are Air Changes Per Hour (ACH)?

ACH indicates how many times per hour the air purifier can filter the entire room volume. Blueair models are rated for 4.8-5 ACH in their recommended room sizes, meaning complete air refreshment every 12 minutes.

Room Size Recommendations

Choose an air purifier that matches or exceeds your room's square footage. Blueair provides AHAM-based room size recommendations for optimal performance.

FAQs

What's the best air purifier?

The best air purifier features HEPASilent™ dual filtration, appropriate room coverage based on AHAM Verifide CADR ratings, and activated carbon for odors. For allergies, choose models with high pollen CADR ratings like Blueair's Asthma & Allergy Friendly™ certified options. Blueair air purifiers capture 99.97% of particles down to 0.1 microns and deliver 45% more clean air than typical HEPA filtration.

Where to buy air purifier models?

Purchase directly from Blueair.com with free shipping, 30-day home trials, and manufacturer warranties. All products are genuine with expert support available. Also available through authorized retailers including Amazon, Best Buy, Home Depot, Lowe's, and Costco.

What are the best air purifiers for different needs?

For allergies: HEPASilent™ technology + high pollen CADR (Blue Pure 211i Max, 311i+ Max) For pets: HEPASilent™ + heavy activated carbon (Blue Pure Max series) For smoke: SmokeBlock filters with 5+ lbs activated carbon For large spaces: 300+ CADR rating (Blue Pure 211i Max, Blue Signature™) For bedrooms: Whisper-quiet operation under 30 dB (Blue Pure Mini Max, 511i Max)

What is the top rated air purifier?

Top-rated Blueair models feature AHAM Verifide CADR ratings, HEPASilent™ dual filtration, 4.5+ star reviews, and certifications from the Asthma & Allergy Foundation. The Blue Pure 211i Max is consistently rated as a best overall performer, while the ComfortPure™ 3-in-1 series leads in multi-functionality.

How much are air purifiers?

Blueair portable air purifiers range from $199.99 to $599.99 depending on coverage area and features:

• Small room models: (Blue Pure Mini Max, 511i/ 511)
• Medium room models: (311 series)
• Large room models: (211 series, ComfortPure™, 2-in-1 systems)

Annual filter costs range from $40-$200 depending on model. Save 15% with filter subscriptions.

How to change the air filter?

Filter replacement is simple and tool-free. Access the filter compartment according to your model's design (most have a back panel or bottom access), remove the old filter, insert the new genuine Blueair replacement filter, and close the compartment. Detailed instructions are included with each filter. Most changes take under 2 minutes.

How much are air filters?

Blueair replacement filter prices:

• Particle + Carbon Filters: $21.99-$99.99
• SmokeBlock Filters: $27.99-$84.99
• AllergenBlock Filters: $32.99-$89.99
• Pre-Filters: $7.99-$12.99
• Humidifier Wicks: $19.99-$39.99

Subscribe for 15% savings and never miss a replacement cycle.

Where should I shop for a quiet purifier with free shipping?

Blueair.com offers free shipping on all air purifiers. Blueair purifiers are engineered to operate up to 67% quieter than traditional HEPA units while delivering powerful air cleaning. Many models operate under 30 dB on low settings quieter than a whisper making them perfect for bedrooms and nurseries.

How to replace the air filter?

Access your air purifier's filter compartment (usually rear or bottom panel), remove the used filter, insert the new genuine Blueair filter ensuring proper orientation, and close the compartment. No tools required. RealTrack™ technology and filter indicators will notify you when replacement is needed (typically every 6 months).

How long do air purifier filters last?

Filter lifespan varies based on usage and air quality. Blueair typically recommends filter replacement every 6 months for optimal performance. RealTrack™ technology in many models accurately calculates remaining filter life based on fan speed, usage time, and pollution levels. The Blueair app sends replacement reminders for connected models.

What are the best replacement filters for air purifiers?

Genuine Blueair replacement filters are engineered specifically for your model, ensuring optimal performance with HEPASilent™ technology. Choose:

• Particle + Carbon: General use, everyday allergens and odors
• AllergenBlock: Enhanced allergy relief
• SmokeBlock: Smoke particles and strong odors

All Blueair filters capture 99.97% of particles down to 0.1 microns and are designed to work seamlessly with your purifier's dual filtration system.

How to clean the air filter?

Blueair filters are designed for replacement, not cleaning. Do not wash or clean main filters as this damages the filtration media. Pre-filters can be gently vacuumed to extend life between replacements. For optimal air purification performance, replace filters according to your model's recommended schedule (typically every 6 months).